Finding the Fourth Proportional to 3,883.01, 5,347.62 and 3,870.86

Step by Step Solution

1. Step 1: Write the proportion equation
   3,883.01 : 5,347.62 = 3,870.86 : x
2. Step 2: Convert to fraction form
   3,883.01/5,347.62 = 3,870.86/x
3. Step 3: Cross multiply
   3,883.01x = 5,347.62 × 3,870.86
4. Step 4: Simplify right side
   3,883.01x = 20,699,861.62
5. Step 5: Solve for x
   x = 20,699,861.62/3,883.01
6. Step 6: Final answer
   x = 5,330.89